GB638321A - A process for the electrolytic polishing and oxidation of aluminium articles - Google Patents

A process for the electrolytic polishing and oxidation of aluminium articles

Info

Publication number
GB638321A
GB638321A GB28689/47A GB2868947A GB638321A GB 638321 A GB638321 A GB 638321A GB 28689/47 A GB28689/47 A GB 28689/47A GB 2868947 A GB2868947 A GB 2868947A GB 638321 A GB638321 A GB 638321A
Authority
GB
United Kingdom
Prior art keywords
articles
polishing
aluminium
electrolytic polishing
volume
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB28689/47A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JEAN FRANCOIS GERMAIN HERENGUE
PROT ET LA COLORATION DES META
Trefileries et Laminoirs Du Havre
Original Assignee
JEAN FRANCOIS GERMAIN HERENGUE
PROT ET LA COLORATION DES META
Trefileries et Laminoirs Du Havre
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JEAN FRANCOIS GERMAIN HERENGUE, PROT ET LA COLORATION DES META, Trefileries et Laminoirs Du Havre filed Critical JEAN FRANCOIS GERMAIN HERENGUE
Publication of GB638321A publication Critical patent/GB638321A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/16—Polishing
    • C25F3/18—Polishing of light metals
    • C25F3/20—Polishing of light metals of aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

638,321. Electrolytic polishing of aluminium. SOC. ANON. POUR LA PROTECTION ET LA COLORATION DES METAUX., TREFILERIES ET LAMINOIRS DU HAVRE., and HERENGUEL, J. F. G. Oct. 27, 1947, No. 28689. Convention date, Feb. 15. [Class 41] A process for the electrolytic polishing of articles of aluminium and alloys thereof consists in anodically treating the articles in a concentrated solution of sulphuric and phosphoric acids the volume of the sulphuric acid being between 50 and 80 per cent and the volume of phosphoric acid being between 25 and 5 per cent, the temperature of the polishing bath being between 75‹ and 100‹ C., and the current density being between 8 and 25 amps per square decimetre. The bath may have relative motion with respect to the anodes. A film formed during polishing may be removed by pickling, and the articles may then be subjected to anodic oxidation under conditions specified in the process described in Specification 28691/47 (as open to inspection under Sect. 91). French Specification 798,721 is referred to.
GB28689/47A 1947-02-15 1947-10-27 A process for the electrolytic polishing and oxidation of aluminium articles Expired GB638321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR940698T 1947-02-15

Publications (1)

Publication Number Publication Date
GB638321A true GB638321A (en) 1950-06-07

Family

ID=9463979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28689/47A Expired GB638321A (en) 1947-02-15 1947-10-27 A process for the electrolytic polishing and oxidation of aluminium articles

Country Status (3)

Country Link
BE (1) BE473383A (en)
FR (1) FR940698A (en)
GB (1) GB638321A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906677A (en) * 1955-03-17 1959-09-29 Nat Steel Corp Electrolytic treatment of tinplate
US2967136A (en) * 1954-03-01 1961-01-03 Reynolds Metals Co Chemical brightening and electrolytic polishing of aluminum
US4396470A (en) * 1980-10-23 1983-08-02 Vickers P.L.C. Lithographic printing plates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967136A (en) * 1954-03-01 1961-01-03 Reynolds Metals Co Chemical brightening and electrolytic polishing of aluminum
US2906677A (en) * 1955-03-17 1959-09-29 Nat Steel Corp Electrolytic treatment of tinplate
US4396470A (en) * 1980-10-23 1983-08-02 Vickers P.L.C. Lithographic printing plates

Also Published As

Publication number Publication date
FR940698A (en) 1948-12-20
BE473383A (en)

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